Features: 1. Digital, the resolution can be up to 14 bits 2. Internal self-calibration, no calibration required 3. Close combination of temperature and humidity for convenient measurement 4. High reliability and long-term stability 5. I2C serial interface is easy to integrate 6. Compact product structure for field application and product integration 7. Suitable for computer room monitoring, warehouse, construction site, concrete test block inspection, agricultural greenhouse, flower nursery, etc. Specification: Condition: 100% Brand new Item Type: Temperature Humidity Sensor Model: FS400-SHT30/31/35 Working Current: 80%, may result in temporary signal drift (drift after 60 hours +3% RH). When returning to normal After the working conditions, the sensor will slowly return to the calibration state. Prolonged use under abnormal conditions will accelerate the aging of the product. Third, storage conditions and operating instructions: Humidity sensors are not ordinary electronic components and require careful protection. This must be taken seriously by users. Prolonged exposure to high concentrations of chemical smell will cause the sensor reading to drift .